The answer is that the equatorial regions receive sun rays closest to the vertical (direct rays) because of their position relative to the equator where the tilting of the earth only mildly affects the climate. The climate along the equator changes very little through out the year and has summer like conditions for most of the year.
However the other regions may receive direct sun rays but for far more limited periods. In the months of July and August (summer months), the northern hemisphere is tilted towards the sun and receives the most direct rays. The opposite occurs in December and January when it is tilted away from the sun and thus winter sets in, whereas the southern hemisphere is at this time tilted toward the sun and receives the most direct sun rays.
Answer:Mice can be male without Y chromosome ... Ward’s work is “a lovely example of how you can lose even a really important gene,” she says. ... don’t have Eif2s3y genes on their Y chromosomes.
Explanation:
Answer:
Oncogenes.
Explanation:
Cancer is the harmful disease that causes several death in the world. Cancer occur due to the mutation in the genes that are responsible for the regulation of apoptosis and cell divisions.
The virus are also oncogenic in nature and can cause several different type of cancer. The human papilloma virus can be transmitted from the skin contact. The virus cause cervical cancer and genital warts. The integration of this virus into host genome increases the expression of viral oncogenes in the host DNA.
Thus, the answer is oncogenes.
Answer:
Epithelial Membranes & Mucous Membrane
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